The USGS Alabama Coop Research Unit requires a new upright microscope for histological analysis of fish tissues, including gonads, liver, and muscle samples, to assess reproductive condition and health. The microscope must support detailed imaging for staging oocyte maturation and quantifying cellular structures. A mounted digital camera is needed to capture high-quality images for analysis, archiving, and repeatable measurements. No specific budget amount, performance location, or non-bid timelines are mentioned in the description. This opportunity is relevant for vendors supplying laboratory microscopy equipment.